ENFPs are outgoing and creative with the key skill of perceiving complicated patterns and information and assimilating it quickly. They are flexible, highly adaptable workers. They are driven by a keen devotion to their ideals and a strong drive to help others. Less developed are their patience for routine tasks, and projection of a serious, committed image. ENFPs need significant time alone to center themselves and make sure they are moving in a direction that is in sync with their values. Keirsey referred to ENFPs as Champions, one of the four types belonging to the temperament he called the Idealists.[2] ENFPs account for about 5― 7% of the population, including Robin Williams, Shannon Oliver-O'Neil, and Dr. Seuss.

By using their preference in each of these areas, people develop what Jung and Myers called psychological type. This underlying personality pattern results from the dynamic interaction of their four preferences, in conjunction with environmental influences and their own individual tendencies. People are likely to develop behaviors, skills, and attitudes based on their particular type. Each personality type has its own potential strengths as well as areas that offer opportunities for growth.

The MBTI tool consists of multiple choice questions that sort respondents on the basis of the four "dichotomies" (pairs of psychological opposites). Sixteen different outcomes are possible, each identified by its own four-letter code, referred to by initial letters. (N is used for iNtuition, since I is used for Introversion). The MBTI is approximately 75% accurate according to its own manual.[4]

E – Extraversion preferred to introversion: ENFPs often feel motivated by their interaction with people. They tend to enjoy a wide circle of acquaintances, and they gain energy in social situations (whereas introverts expend energy).[5]

N – Intuition preferred to sensing: ENFPs tend to be more abstract than concrete. They focus their attention on the big picture rather than the details, and on future possibilities rather than immediate realities.[6]

F – Feeling preferred to thinking: ENFPs tend to value personal considerations above objective criteria. When making decisions, they often give more weight to social implications than to logic.[7]

ENFPs are initiators of change and keenly perceptive of possibilities. They energize and stimulate others through their contagious enthusiasm. They prefer the start-up phase of a project or relationship, and are tireless in the pursuit of new-found interests. ENFPs are able to anticipate the needs of others and to offer them needed help and appreciation. They bring zest, joy, liveliness, and fun to all aspects of their lives. They are at their best in fluid situations that allow them to express their creativity and use their charisma. They tend to idealize people, and can be disappointed when reality fails to fulfill their expectations. They are easily frustrated if a project requires a great deal of follow-up or attention to detail.

Champions (ENFP) delight in novelty. They are optimistic, enthusiastic, and vivacious, craving expressions of strong emotion. With a dramatic flair, they share their experiences with others, hoping to reveal some universal truth or win others over in support of a cause. Attuned to possibilities, Champions scan their environment, probing the emotions, needs, and motivations of others. This sensitivity sometimes conflicts with their intense drive for personal authenticity. Spontaneous and personable, they attract others to their company.[9]

Champions are full of energy and can spend great amounts of time discussing ideas and possibilities with others. They always look to find meanings in the world, and are more likely to be the champion of causes rather than of individuals. Living fully in this way is extremely important to them and it is their nature. Champions observe all that is going on around them and are quick to bring peace to any unpleasant interaction. They are not afraid to speak up and defend what they think is right and correct, just, or fair.

A diagram of the cognitive functions of each type. A type's background color represents its Dominant function, and its text color represents its Auxiliary function.

Drawing upon Jungian theory, Isabel Myers proposed that for each personality type, the cognitive functions (sensing, intuition, thinking, and feeling) form a hierarchy. This hierarchy represents the person's default pattern of behavior.

The Dominant function is the personality type's preferred role, the one they feel most comfortable with. The secondary Auxiliary function serves to support and expand on the Dominant function. If the Dominant is an information gathering function (sensing or intuition), the Auxiliary is a decision making function (thinking or feeling), and vice versa. The Tertiary function is less developed than the Dominant and Auxiliary, but it matures over time, rounding out the person's abilities. The Inferior function is the personality type's fatal weakness. This is the function they are least comfortable with. Like the Tertiary, the Inferior function strengthens with maturity.[10][page needed]

Jung and Myers considered the attitude of the Auxiliary, Tertiary, and Inferior functions to be the opposite of the Dominant. In this interpretation, if the Dominant function is extraverted, then the other three are introverted, and vice versa. However, many modern practitioners hold that the attitude of the Tertiary function is the same as the Dominant.[11]
Using the more modern interpretation, the cognitive functions of the ENFP are as follows:

Ne finds and interprets hidden meanings, using “what if” questions to explore alternatives, allowing multiple possibilities to coexist. This imaginative play weaves together insights and experiences from various sources to form a new whole, which can then become a catalyst to action. Ne enables ENFPs to effortlessly connect the dots in behavioral patterns and social norms, giving them a gregarious edge in interactions.[12] Extraverted Intuitives also have a very entrepreneurial mindset. Ne users see possibilities of what could be all around them. They have a desire to make things happen and “put a dent in the world.” Extraverted Intuitives can get very excited about these possibilities, making them naturally charismatic. Ne users can be inspiring leaders that are trying to be catalysts for change.[13]

Fi filters information based on interpretations of worth, forming judgments according to criteria that are often intangible. Fi constantly balances an internal set of values such as harmony and authenticity. Attuned to subtle distinctions, Fi innately senses what is true and what is false in a situation.[14] Ideally, Fi users would like everything they do to be in congruence with their personal beliefs. They want to live a life as true to themselves as possible.[15]

Te organizes and schedules ideas and the environment to ensure the efficient, productive pursuit of objectives. Te seeks logical explanations for actions, events, and conclusions, looking for faulty reasoning and lapses in sequence. Te often causes ENFPs to think aloud regardless of where they are, as they outwardly express their ideas and natural trail of thought.[16]

Si collects data in the present moment and compares it with past experiences, a process that sometimes evokes the feelings associated with memory, as if the subject were reliving it. Seeking to protect what is familiar, Si draws upon history to form goals and expectations about what will happen in the futures.[17]

Later personality researchers (notably Linda V. Berens)[18] added four additional functions to the descending hierarchy, the so-called "shadow" functions to which the individual is not naturally inclined but which can emerge when the person is under stress. For ENFP, these shadow functions are (in order):

Introverted iNtuition (Ni): Attracted to symbolic actions or devices, Ni synthesizes seeming paradoxes to create the previously unimagined. These realizations come with a certainty that demands action to fulfill a new vision of the future, solutions that may include complex systems or universal truths.[19]

Extraverted Feeling (Fe): Fe seeks social connections and creates harmonious interactions through polite, considerate, and appropriate behavior. Fe responds to the explicit (and implicit) wants of others, and may even create an internal conflict between the subject's own needs and the desire to meet the needs of others.[20]

Introverted Thinking (Ti): Ti seeks precision, such as the exact word to express an idea. Ti notices the minute distinctions that define the essence of things, then analyzes and classifies them. Ti examines all sides of an issue, looking to solve problems while minimizing effort and risk. Ti uses models to root out logical inconsistency.[21]

Extraverted Sensing (Se): Extraverted Sensing focuses on the experiences and sensations of the immediate, physical world. With an acute awareness of the present surroundings, it brings relevant facts and details to the forefront and may lead to spontaneous action.[22]